Smartly Prepare Exam with Free Online JSE-40-01 Practice Test

We offer the latest JSE-40-01 practice test designed for free and effective online JSE Certified Entry-Level JavaScript Programmer certification preparation. It's a simulation of the real JSE-40-01 exam experience, built to help you understand the structure, complexity, and topics you'll face on exam day.

Question 1

The minimum JavaScript online development environment will consist of:

(Select two correct answers)

Options :

A : a forum for developers to exchange information only

B : an online code editor

C : an interactive page with JavaScript documentation

D : the runtime environment

Answer: B,D

Question 2

Analyze the following code:

let x = false || true;

let y = "true" && "false";

let z = false && true;

console.log(`${x} ${y} ${z}`);

What will appear in the console as a result of its execution?

Options :

A :

false false false

B :

true false false

C :

false false true

D :

false true true

Answer: B

Question 3

We have initialized the name variable with the value "Alice"

then we try to write the number 100 into it.

let name = "Alice";

name = 100;

Options :

A : the variable will retain the value "Alice"

(we cannot modify the value that the variable has been initialized with).

B : the variable will contain the string "100"

C : the program will be aborted due to an error

(we are trying to insert a value of a different type into the variable

than the value with which it was initialized).

D : the variable will contain the number 100

Answer: D

Question 4

Which of the following loop instructions is intended only to loop

through all elements of the indicated array?

Options :

A : do ... while

B : for ... in

C : for ... of

D : for

Answer: C

Question 5

Analyze the following code:

let point = {x: 10, y: 20};

for (let f in point) {

console.log(point[f]);

}

What will appear on the console as a result of its execution?

Options :

A : x

B : 10

C : point

D : 10

Answer: B